To escape the clutches of the evil warrior and sorceress Morgana, Merlin transports young King Arthur into modern day America. When Merlin comes back ten years later to retrieve him, he finds a hip 15 year-old Arthur who does not believe Merlin, nor does he want to return to the past. Merlin must convince Arthur of his true identity, before Morgana can retrieve Excalibur and allow the Dark Forces to take over the world.先是楚阳强势出击，一举杀死了元天限爱子，引发漫长的追杀，这一场追杀之路，虽然随着墨云天的爆发叛乱而不得不中途停止，但在这次追杀之重，涉及人物之多，追杀范围之广，追杀路途之遥……却无一不是最接近几十万年来九重天之最。